Elasipodida

Elasipodida
	Enypniastes
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Holothuroidea
Subclass:	Aspidochirotacea
Order:	Elasipodida
Families
	(See Text)

Elasipodida is an order of sea cucumbers. They have numerous appendages, including conical papillae and leaf-like tentacles. Although many species are benthic, a number are pelagic, and may have their appendages modified to form sails or fins. Most members of the order inhabit deep-sea environments, like Enypniastes.^[1]

Classification

According to World Register of Marine Species :

family Deimatidae Théel, 1882
family Elpidiidae Théel, 1882
family Laetmogonidae Ekman, 1926
family Pelagothuriidae Ludwig, 1893
family Psychropotidae Théel, 1882

The only true pelagic echinoderm known to date : Pelagothuria natatrix (here close to the Galapagos).
Benthodytes sp.
Scotoplanes globosa (a.k.a. "sea pig", family Elpidiidae)
A Pelagothuriidae
A Psychropotidae

References

Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 995. ISBN 0-03-056747-5.
Mah, Christopher (September 18, 2012). "Deep-Sea Swimming Sea Cucumbers and the "most bizarre holothurian species in existence"!". The Echinoblog.

Notes

^ Mah, Christopher (September 18, 2012). "Deep-Sea Swimming Sea Cucumbers and the "most bizarre holothurian species in existence"!". The Echinoblog.

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[1] Mah, Christopher (September 18, 2012). "Deep-Sea Swimming Sea Cucumbers and the "most bizarre holothurian species in existence"!". The Echinoblog.

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